Bullet Points:1, Compatible with Almost Hydroponic: These growing sponges are compatible with most indoor hydroponic gardens, so you can buy them with confidence. If you have any doubts, please customer service in time.2, Hole design: there is a small hole on the top of the growing sponge that allows you to put seeds in it to make sure the seeds don't fall into the water.3, 50 pieces of sponge planting: you will receive 50 packs with replacement seed pods. Enough can meet your requirements for quick start of multiple seed hydroponics.4, applicable stage: Seed Pod Kit is suitable for indoor hydroponic garden planting or outdoor soil planting, and it is very easy to use.5, After-sales services: we are committed to providing customers with high-quality products and the most considerate service. We will patiently reply you if you have any questions about our products. Description:Growth sponges can help you plant anything you want in hydroponic growing systems such as strawberries, potatoes and flowers, meet your requirements for a quick start of multiple hydroponic seedsNote:1. Due to manual measurement, please allow 1-3cm difference, thank you for your understanding!2. Due to the difference between different monitors, please note that the picture may not reflect the actual color of the item. Package Included:Cultured Cotton Package(50 Pieces)Package Included:Cultured Cotton Package(50 Pieces)